Title: CAID 34870: CA Anti-Virus vetfddnt.sys, vetmonnt.sys Local Denial of Service Vulnerabilities CA Vulnerability ID (CAID): 34870 CA Advisory Date: 2006-12-13 Discovered By: Rubén Santamarta (reversemode.com) Impact: Local unprivileged attacker can cause a denial of service. Summary: Multiple instances of improper handling of NULL buffers in CA Anti-Virus allow local attackers to cause a denial of service condition. This issue affects only consumer CA Anti-Virus products. Mitigating Factors: Valid user account is required for successful attack. Severity: CA has given this vulnerability issue a Low risk rating. Affected Products: Consumer Products: CA Anti-Virus 2007 v8.1 CA Anti-Virus for Vista Beta v8.2 CA Internet Security Suite 2007 v3.0 Affected platforms: Microsoft Windows Status and Recommendation: CA has addressed this issue in the GA (Generally Available) software by providing a new automatic update on December 13, 2006. Customers running one of the GA products simply need to ensure that they have allowed this automatic update to take place. For CA Anti-Virus for Vista Beta, this issue will be patched in the GA release of the software. Determining if you are affected: View the Help>About screen and confirm that the product version is 8.3.0.1 or above. You can also verify application of the update by confirming that the vetfddnt.sys and vetmonnt.sys driver versions are 8.3.0.1 or above. These files are located in the %windows%\system32\drivers folder. References (URLs may wrap): CA SupportConnect: http://supportconnect.ca.com/ CA SupportConnect Security Notice for this vulnerability: N/A CA Consumer Support Security Notice for this vulnerability: Low Risk CA Anti-Virus Vulnerability - Multiple Local Denial of Service http://crm.my-etrust.com/login.asp?username=guest&target=DOCUMENT&openparameter=2651 Solution Document Reference APARs: N/A CA Security Advisor posting: CA Anti-Virus vetfddnt.sys, vetmonnt.sys Local Denial of Service Vulnerabilities http://www3.ca.com/securityadvisor/newsinfo/collateral.aspx?cid=96883 CAID: 34870 CAID Advisory links: http://www3.ca.com/securityadvisor/vulninfo/vuln.aspx?id=34870 Discoverer: Rubén Santamarta, Reverse Mode http://www.reversemode.com/ http://www.reversemode.com/index.php?option=com_remository&Itemid=2&func=fileinfo&id=41 CVE Reference: CVE-2006-6496 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6496 OSVDB Reference: OSVDB ID: 30845 http://osvdb.org/30845 Changelog for this advisory: v1.0 - Initial Release Customers who require additional information should contact CA Technical Support at http://supportconnect.ca.com. For technical questions or comments related to this advisory, please send email to vuln@ca.com, or contact me directly. If you discover a vulnerability in CA products, please report your findings to vuln@ca.com, or utilize our "Submit a Vulnerability" form. URL: http://www3.ca.com/securityadvisor/vulninfo/submit.aspx Regards, Ken Williams ; 0xE2941985 Director, CA Vulnerability Research CA, One CA Plaza. Islandia, NY 11749 Contact http://www3.ca.com/contact/ Legal Notice http://www3.ca.com/legal/ Privacy Policy http://www3.ca.com/privacy/ Copyright © 2006 CA. All rights reserved.